Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
44-bilet
1. Zamonaviy shifrlash algoritmlariga asosiy talablar
2. RSA ochiq kalitli shifrlash algoritmi uchun quyidagi parametrlarga mos yopiq kalitni hisoblang. p=37, q=23, e=215, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={829,6,249,6,425,813,6,813,60,843,805,481,805,6}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=977, g=341, x=759, a=114, b={821,38,790,821,162,542,697,38,728,162,317,635,821,38,317,728,162,604,697,162}, M=?
Kafedra mudiri Jo'rayev G.U.